Results 41 to 50 of about 2,285,577 (322)

Galaxy subgroups in galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2011
Galaxies which fall into clusters as part of the same infall halo can retain correlations due to their shared origin. N-body simulations are used to study properties of such galaxy subgroups within clusters, including their richnesses and prevalence.
openaire   +4 more sources

The shapes of galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
17 pages, postscript, submitted to ...
Theije, P.A.M. de   +2 more
openaire   +4 more sources

The Halo Boundary of Galaxy Clusters in the SDSS [PDF]

open access: yes, 2017
Analytical models and simulations predict a rapid decline in the halo density profile associated with the transition from the “infalling” regime outside the halo to the “collapsed” regime within the halo.
E. Baxter   +9 more
semanticscholar   +1 more source

Formation of Galaxy Clusters [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2012
Formation of galaxy clusters corresponds to the collapse of the largest gravitationally bound overdensities in the initial density field and is accompanied by the most energetic phenomena since the Big Bang and by the complex interplay between gravity-induced dynamics of collapse and baryonic processes associated with galaxy formation. Galaxy clusters
Kravtsov A., BORGANI, STEFANO
openaire   +5 more sources

The nongravitational interactions of dark matter in colliding galaxy clusters [PDF]

open access: yesScience, 2015
Uncloaking the influence of the invisible actor The idea of dark matter enjoys popular support, but two major concerns persist: the so-called Standard Model excludes it, and it cannot be directly detected by any telescope.
D. Harvey   +4 more
semanticscholar   +1 more source

THE CRITERIA FOR MORPHOLOGICAL CLASSIFICATION OF PF GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2013
The morphological types of galaxy clusters resulting from their out ward appearance is physically related to the clusters and their member galaxies. Presented here is an adopted system of morphological types of galaxy clusters based on the Zwicky, Boutz ...
E. A. Panko
doaj   +1 more source

On the Origin and Evolution of the Intra-Cluster Light: A Brief Review of the Most Recent Developments

open access: yesGalaxies, 2021
Not all the light in galaxy groups and clusters comes from stars that are bound to galaxies. A significant fraction of it constitutes the so-called intracluster or diffuse light (ICL), a low surface brightness component of groups/clusters generally found
Emanuele Contini
doaj   +1 more source

THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE

open access: yesOdessa Astronomical Publications, 2014
The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
doaj   +1 more source

High-energy Neutrino Constraints on Cosmic-Ray Reacceleration in Radio Halos of Massive Galaxy Clusters

open access: yesThe Astrophysical Journal, 2023
A fraction of merging galaxy clusters host diffuse radio emission in their central region, termed a giant radio halo (GRH). The most promising mechanism of GRHs is the reacceleration of nonthermal electrons and positrons by merger-induced turbulence ...
Kosuke Nishiwaki   +2 more
doaj   +1 more source

The Way to Quench: Galaxy evolution in Abell 2142 [PDF]

open access: yes, 2023
We show how the star formation activity of galaxies is progressively inhibited from the outer region to the center of the massive cluster A2142. From an extended spectroscopic redshift survey of 2239 galaxies covering a circular area of radius $\sim 11$~Mpc from the cluster center, we extract a sample of 333 galaxies with known stellar mass, star ...
arxiv   +1 more source

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